Merge pull request #41 from computationalmodelling/development

Update README.md

Author: mvousden

README.md

@@ -2,7 +2,7 @@ Welcome to the Virtual Micromagnetics project repository!
 
 Provided by Mark Vousden, Hans Fangohr, and others at the University of Southampton. Funded by EPSRC's DTC grant EP/G03690X/1.
 
-Check out our [![Documentation Status](https://readthedocs.org/projects/virtual-micromagnetics/badge/?version=development)](http://virtual-micromagnetics.readthedocs.org/en/development) for information on building and using virtual environments.
+Check out our [![Documentation Status](http://readthedocs.org/projects/virtual-micromagnetics/badge/?version=release)](http://virtual-micromagnetics.readthedocs.org/en/release/?badge=release) for information on building and using virtual environments.
 
 Here's a screenshot of Virtual Micromagnetics 1.0.1 solving micromagnetic standard problem 1 using OOMMF: